fix(vue): expose countlyGlobal on Vue prototype (template render crash in dev build)

[ar2rsawseen]

Symptom

With the dev/warning Vue build (frontend.production=false), any page whose Vue template references countlyGlobal throws during render and breaks the page:

[Vue warn]: Property or method "countlyGlobal" is not defined on the instance but referenced during render
TypeError: Cannot read properties of undefined (reading 'path')

(In countly-platform this crashed the Drill page on every query — the loading/thinking avatar template uses countlyGlobal.path.)

Root cause

countlyGlobal is a window-level global. Vue 2's render proxy (present in the dev/warning build) does not fall through to window for identifiers in template expressions, so countlyGlobal resolves to undefined and undefined.path throws. It only "works" in the minified build, where with(this) falls through to window.countlyGlobal. So any countlyGlobal.* in a .html template binding (:src=, :href=, {{ }}) is a latent crash. The defensive (countlyGlobal.path || '') form doesn't help — countlyGlobal.path is evaluated before || ''. (JS-file uses in countly.models.js/countly.views.js are fine — this only affects template expressions.)

Fix (single, central)

In frontend/express/public/javascripts/countly/vue/core.js, right after Vue.prototype.$route = new BackboneRouteAdapter();, expose it on the prototype via a getter (so it always reflects the current window.countlyGlobal):

Object.defineProperty(Vue.prototype, "countlyGlobal", {
    configurable: true,
    get: function() { return window.countlyGlobal; }
});

This covers every dashboard template referencing countlyGlobal across core and all plugins. Enterprise plugins need no separate change — they render inside this same dashboard Vue instance. No per-component data/computed shims. Confirmed Vue.prototype.countlyGlobal wasn't already defined.

Verify

• node --check on core.js passes; eslint clean.
• With frontend.production=false, a page using a countlyGlobal.* template binding (Drill run-query, push compose preview, views config) renders with no [Vue warn]/render error and resolves asset URLs.
• For production/minified mode the bundled /min/ assets are rebuilt by CI (grunt dist-all); only the source change is committed here.

🤖 Generated with Claude Code

[Copilot]

Pull request overview

This PR fixes a Vue 2 dev/warning build render crash by making the existing window.countlyGlobal available as an instance property in Vue template expressions. It centralizes the workaround in the core Vue bootstrap so all core and plugin templates can safely reference countlyGlobal.* without per-component shims.

Changes:

• Expose countlyGlobal on Vue.prototype using a getter that returns window.countlyGlobal.
• Add inline documentation explaining why this is required for Vue 2’s dev-mode render proxy behavior.